| Description & Applications | Total Power Solution for Portable Applications The AAT2554 is a fully integrated 500mA battery charger.The input voltage range is 4V to 6.5V for the battery charger and 2.7V to 5.5V for the step-down converter and linear regulator, making it ideal for applications operating with single-cell lithiumion/polymer batteries.The charging current is programmable via external resistor. In addition to these standard features, the device offers over-voltage, current limit, and thermal protection. The output voltage ranges from 0.6V to the input voltage. |